Here's an interesting fact. I had really long hair during Freshman year of college but got got it cut after sophomore year due to shoulder pain. My hair is on the thicker side and it puts a lot of weight on my neck. I learned that with thick hair you need to evenly distribute the weight to avoid possible shoulder pains. If you word in an office setting you are more likely to bend your head forward. Your spine then curves and also if the hair is heavy you tend to lean forward more.
Here are a few ways that can help evenly distribute the hair weight.
1. Milkmaid Braid or Crown Braid will distribute the weight evenly as opposed to low buns.
2. Get some weight off your back by getting a face-framing layer or v-cut layer.
3. If you don't like the look of layers, you can ask your hairstylist to thin your hair.
This is a hair cutting technique focus in the inner hair section which makes thicker hair look weightless.